Typewriting machine



Sept. 29, 1931.

F. A. HART TYPEWRITING MACHIIINE 1926 5 Sheets-Sheet 1 .F'iled Oct. 22

INVENTOR A TTORNEY FREDERICK A. HART BY 1 WITNESS ES $4M; w

Sept. 29, 1931. F. A. HART TYPEWRITING MACHINE 1926 5 Sheets-Sheet 2Filed 001; 22

INVENTOR FREDERICK A. HART WITNESSES ATTORNEY Sept. 29, 1931. F. A. HARTTYPEWRITING MACHINE 5 Shets-Sheet s Filed Oct. 22

||||l|I lllllllll I I l I INVENTOR FREDERICK A HART ATTORNEY WI TNESSESept. 29, 1931. HART TYPEWRITING MACHINE Filed Oct. 22, 1926 5Sheets-Sheet 4 R m m m FREDERICK A .HART BY WITN ESSES Z w'fiwm A TTORNEY Sept. 29, 1931. F. A. HART TYPEWRITING MACHINE Filed Oct. 22

5 Sheets-Sheet 5.

IN VENTOR FREDERICK A.HA RT A TT ORNE Y Patented Sept. 29, 1931 UNITEDSTATES PATENT OFFICE FREDERICK A. HART, NEW BRITAIN, CONNECTICUT,ASSIGNOR TO REMINGTON WRITER COMPANY, OF ILION, NEW YORK, A. CORPORATIONOF NEW YORK TYIPEWRITING MACHINE Application filedflctober 22, 1926.Serial No. 143,382.

My invention relates to typewriting or like machines, and moreparticularly to so-' called billing mechanism therefor.

The machine in which the features of the 5 present invention areembodied has some of the same general objects in view as theconconstructions disclosed in each of the following applications andpatents: Frederick A. Hart, filed July 3, 1926, Ser. No. 120,403 (nowPatent 1,650,351) S. L. Walsoe & J. P Hill, filed July 8,1926, Ser. No.121,134 (now Patent 1,650,673) S. L. Walsoe, filed Sept. 2, 1926, Ser.No. 133,228 (now Patent 1,663,- 362) C. E. Burns, filed July 13, 1926,Ser. No. 122,239 (now Patent 1,647,854). The present invention isintended primarily to improve the construction disclosed in the saidpatent of Walsoe, 1,663,362, and includes Various-features which arecombined with those disclosed in said patent. The present invention alsoincludes features that are equally applicable to the constructiondisclosed in the patents mentioned above,

- showing the parts in full lines as they are with a view to improvingthem.

More specifically stated, the objects of the present invention are asfollows:

(1st) To convert the so-called two-sheet biller of the Walsoe atent1,663,362 into a so-called three-sheet iller, by providing a 30 thirdset of paper feed rollers and means for effectively controlling them forthe purposes for which they are employed.

(2nd) By providin simple and effective adjusting means by w ich thepositively applied paper feed rollers may exert more or less force ateach application thereof.

(3rd) To provide means for automatically locking the paper feed .rollerswhich coact with the register sheet in ineffective position. 7 v

(4th) To provide means for temporarily limiting the movement of thepositively applied paper feed rollers away from the platen ina;.rposition intermediate the full extent of releasing movement thereof.

(5th) To provide means whereby the movementof a finger piece in onedirection is effective tomove two sets of feed rollers away from theplaten and a movement of the finger piece in the opposite direction iseffective to apply one set only of said feed rollers to the platen.

(6th) To provide means for supporting the ledger sheet in a manner whichwill more readily facilitate the introduction of a comparativel% thinbill or statement sheet.

(7th) 0 provide detenting means for preventing an accidentaldisplacement from the extreme releasing position of the paper feedrollers which automatically control the line indicator, etc.

To the above and other ends which will hereinafter appear, my inventionconsists in the features of construction, arrangements of parts, andcombinations of devices set forth in the following description andparticularly pointed out in the appended claims.

In the accompanying drawings wherein like reference characters indicatecorresponding parts in the difierentviews:

Figure 1 is an enlarged, detail, fragmentary, side elevation of aportion of the machine with parts broken away, the view normallydisposed when the machine is in condition for writing.

Figure 2 is a like view of some of the parts disclosed in Fig. 1, butshowing such parts as they appear when the machine is conditioned toreceive rearwardly introduced work sheets inserted from in front of theplaten.

Figure 2* is a detail, fragmentary, side elevation showing a part of theribbon vibrator supporting and actuating mechanism.

Figure 3 corresponds in part to the showing in Fig. 2 exceptthat theforward feed rollers are shown released from the platen while theautomatically controlled deflector, line indicator and ribbon vibratorhave not been disturbed from the position they nor- 1 mally occupy.

Figure 4 is a full size, fragmentary, top plan view of a portion of themachine with the parts shown in normal position.

Figure 5 is an enlarged, detail, fragmentary, top plan view showing theleft-hand end of the front feed-roller spindlathe associated guidetherefor and the spring detent which coacts therewith.

\ Figure 6 is a fragmentary, vertical, transverse sectional view of thecarriage, taken on the line 6 6 of Fig. 1 and looking in the directionof the arrows at said line. T, Figure 7 is an enlarged, detail,fragmentary, perspective view of the improved means for adjustablyconnecting one end of the wire line-indicator to its supporting arm.

Figure 8 is a fragmentary, detail, perspective view of the center ofsecondary feed rollers and the associated means for mountingandcontrolling said rollers Figure 9 is a detail, perspective view of thedouble deflector together with the parts carried thereby and some of theparts associated therewith.

Figure 10 is an enlarged, detail, transverse sectional view showing aportion of the double deflector and manner in which it coacts withvarious work sheets.

Figure 11 is a detail, fragmentary, perspective view, showing the partsby w ich one of the guides for the forward feed rollers is adjustablysupported.

Figure 12 is an enlarged, detail transverse sectional view showing themeans for ad justably supporting the double deflector in normalposition; the section being taken on the line 12-12 of Fig. 4 andlooking in the direction of the arrows at said line.

Figure 13 is an enlarged, detail, fragmentary sectional view of theleft-hand end of the spindle for supporting the top feed rollers,together with the associated bearing for this end of said spindle; thesection being taken on the line 13-13 of Fig. 1 and looking in thedirection of the arrows at said line.

Figure 14 is an enlarged, detail, transverse sectional view of the same,taken on the line 1414 of'Fig. 13 and looking in the direction of thearrows at said line.

The machine in which the features of the present invention are shownembodied is a Remington bookkeeping machine, model N0. 23, equipped withautomatic carriage return mechanism such as disclosed in my Patent No.1,567,590, dated Dec. 29, 1925. However, I have shown only so much ofsaid machine, modified to include the toggle controlled paper feedmechanism, etc., of the Walsoe patent hereinbeforereferred to, as isnecessary to illustrate my invention in its inclusion therein. It shouldbe understood, however, that the invention is not restricted toembodiment in said machine but is of 'ggperal application wherever foundavaila e.

As in the machines of the said patents and applications hereinbeforereferred to the present machine is capable of a wide i range of uses inconnection with various where two or more work sheets are to becorrelated in the machine and printed at a single operation. However, Ido not deem itnecessary to describe specifically the many differentforms of billing operations in which the machine may be used. It issufiicient for an understanding of the present invention to specificallydescribe one mode of billing that may be successfullyl out with the aidof the present mac ine, and perhaps briefly refer to some of the variousother methods in connection with which the machine may be employed.

One method of using the machine, which will be specifically referred to,is its employment for simultaneously, or at one writing, making out astatement, making corresponding. entries on the ledger sheet carryingthe account, and on a record or register sheet which receives thevarious entries written on all of the individual statement and ledgersheets. In the example referred to the register sheet and itsaccompanying carbon sheet remain in the machine. Means are provided toenable the ledger sheet and its accompanying carbon sheet to be quicklyintroduced and properly positioned to re ceive the requisite entrieswithout disturbing the previously introduced register sheet andcompanion carbon sheet. Means also are provided for then quicklyentering a statement sheet into the machine in front of the platen andaccurately positioning it in proper correlation with the previouslyintroduced ledger sheet and the printing line. The entries may then bemade on the statement sheet and these will be transferred through theinterposed carbon sheets to the ledger and register sheets. If desired,additional entries may be made on the ledger sheet which are not to apcar on the statement or register sheet. T e statement and ledger sheetsare then rapidly withdrawn from the machine without disturbing theregister sheet and its companion carbonsheet and another ledger sheetand statement sheet may then be quickly introduced, as before, and soon.

A line spacing operation effected by the return of the carriage afterwriting a statement and making the corresponding entry on the ledger andregister sheets, advances the register sheet in position to receive amanifold copy of the next entry on the register sheet. I

With the foregoing general explanation of the purpose and operation, Iwill proceed to describe the invention as it is embodied, in the presentinstance, in said hereinbefore mentioned Remington machine.

The frame of the machine includes the usual top plate 1 supporting fixedguide rails 2. The carriage or truck comprises front and rear guide orcross bars 3, united by carried loo end bars 4 and 5. The guide rails 2and cross bars 3 are oppositely grooved to receive crossed anti-frictionrollers 6, by which the carriage is supported. in the usual manner totravel from sideto side of the machine over the top plate 1. c

A cylindrical platen 7 is mounted in the usual manner in a platen framecomprising the rigidly connected end plates 8 and 9; the platen framebeing connected to the carriage by the usual shift links 10 and 11. Inthe present instance, however, I contemplate writing only with uppercase characters and the platen is, therefore, preferably Held in theupper case position. This may be readily done by screwing up thelowermost case-shift limiting screw-stops 12, thereby holding the platenshaft, or the buffer springs 13 which surround it, against theupper-case limiting stops 14. This brings the printing line on theplaten to a position where the uppermost types 15 on the usual type bars16 will register therewith.

A ribbon vibrator 17 is mounted to slide up and down in the usual manneron a type bar center guide 18 secured-to the type bar segment 19. Thevibrator is actuated at each printing operation by the usual mechanism(see Fig. 2), which includes an arm 20. Said arm is pivoted at 21 on ashiftable carrier or support 22 mountedon parallel links 23. Acontractile spring 24 tends tolift the shiftable support 22, and causesan anti-frictionroller 25-carried thereby to bear upward against thelower edge of a bar 26. This bar is secured to the carriage and extendssubstantially throughout the length .thereof; In the usual Remingtonmachines the purpose of this construction is to cause the ribbonvibrator to be shifted up and down with the platen in the caseshiftingmovements of the latter. In the present construction there isnosuch case shifting movements of the platen but the construction,nevertheless, lends itself to the accomplishment of another result whichwill hereinafter appear.

As in the construction disclosed in said Walsoe patent, it is desirablewhen introducing a work sheet backwardly into the machine tolower theribbon vibrator from its-normal, Fig. 1, position. This is in order toenable the front paper deflector to be more conveniently moved toeffective position, as shown in Fig. 2. In the present construction I'haveemployed the same means that are disclosed in said Walsoe I patentfor effecting this result. Thus, as

in the prior construction, a bracket arm 27 extends forward from theshiftable support 22 and carries an anti-friction roller 28 at the upperend thereof. A rock shaft 29 extends throughout the length of thecarriage and ismounted at its ends in bearing openings in the end plates8 and 9 of the platen frame. This roclg shaft29 carries a plate 30 Ywhich extends substantially throughout the len h thereofand is bent downat its forwar edge to form a flange 31 which coacts with theanti-friction roller 28. When the rock shaft 29, and the plate 30carried thereby, are shifted by means to be hereinafter described, fromthe Fig.1

to the. Fig. 2 position, the shiftable sup ort 22 will belowered againstthe power 0 its spring 24 effecting a corresponding lowering of theribbon vibrator 17.

Coming now to the means for controlling and guiding the work sheets itwill be observed in the first place that there are no paper feed rollersemployed beneath the platen, such rollers as are employed being flectorsconform to the curvature of the platen or are substantially concentrictherewith and extend substantially throughout the length of the platen.As thus constructed there are two separate channels provided, one ofwhich is the open channel 36 between the two deflectors and which isbounded at its ends by separating members 134 and 35, either or both ofwhich may constitute side guides or gages for cooperation with a worksheet or sheets introduced into the channel 36. The other separatedchannel 37 is provided between the under surface of the platen and theupper deflector 32. The forward edge of the deflector 33 terminates inadvance of the forward edge of the deflector 32, and has a slightdownward curve in cross section. The deflector 33 is continued up at therear to form an upwardly and rearwardly extending paper table 38 whichterminates at a considerable height above the platen. On the other hand,theslight pivotal movement thereon. A light wire spring 41 is connectedby screws42 and 43 to a cross bar 44 of the platen frame, the springbeing anchored at one end on the against the bottom of the deflector33and causes the forward edge portion of the dd screw 42 and coiledaround the stem of the 1 flector 32 normally. to. be lightly pressedagainst the platen, or against the mterposed work sheet. In this mannerthe sheets introduced from the rear of the platen through the channel 37willbeheld snugly against the platen, and the sheets introduced into thechannel 36 will be prevented from entering the channel 37 By moving theupper end of the paper table forward, the forward end portions of thedeflectors may be moved downward a limited distance, thus carrying theforward contact edge of the deflector 32 away from the platen, asprovided for in the construction disclosed in the hereinbefore mentionedHart Patent 1,650,351. Unless this contact of the deflector 32 with theplaten is nicely regulated and controlled, there is apt to be an unduebinding of said deflector on the platen, or

on the re ister sheet, during the forward turning of the platen.

I have provided adjustable means for determining the normal position ofthe double deflector on its pivot 40, and also for determining the limitof pivotal movement that said double deflector may receive away fromnormal position, which will now be described.

Referring more particularly to Figs. 1, 9 and 12, it 'will be seen thata cross bar or supporting rod 46 is connected at its ends to the endplates 8 and 9 of the platen frame, and is fixed thereto against turningmovement. One or more sleeves 47 are mounted a on this rod, two beingshown in the present instance. Each sleeve is tapped transverselythroughout its diameter in two lines at right angles to each other, soas to provide a plurality of tapped openings 48. ,In the most convenientone of. these openings is received a set screw 49 that is adapted tohear at its inner end against the supporting rod 46. Fixed to eachsleeve 47 is a snail-cam 50, the curved contact edge of which is adaptedto form a bearing against which the back of the paper table 38 ispressed by the spring 41, thus determining thenormal position of thedouble deflector on its pivot and pre-.

. adjusted.

In order to limit the pivotal motion of the double deflector in theopposite direction, I provide one or more additional adjustablesnail-cams or stop devices 51 to contact with the bottom of thedeflector 33, as indicated in Figs. 1 and 6. The carriage of theRemington machine, as manufactured, has on its cross bar 44 a series offaced lugs 52 each of these screws is supported one of the cams 51. Byslightly loosening each of the screws 53, the associated cam or stop 51may receive a turning adjustment around the stem of its screw to bringthe curved contact edge of the cam or stop closer to or further from thebottom of the deflector 33, and thus regulate the extent of releasingmotion of the double deflector. When the cams 51 are adjusted to theproper position, a tightening of the'serews 53 will hold the cams with abinding action in such position.

The above described means for adjusting the double deflector are notclaimed herein but are claimed in a division of this case filed Dec, 1,1927, Sr. No. 236,984.

It is intended at times to introduce rearwardly through the channel 36,first one comparatively heavy ledger sheet L (see Fig. 10), and then acomparatively thin or troduced ledger sheet and the deflector 33.

This difficulty is more pronounced when the statement sheet isrelatively thin, or made from very light stock. In order to overcomethis disadvantage I have provided, by the present invention, work sheetsupporting means in the channel 36 for supporting the ledger sheet in anunobstructing position in said channel, where it will not interfere withthe ready insertion and free passage through the channel of another worksheet, such as the statement sheet, as clearly indicated in Fig. 10.Such means in the present instance comprises a plurality ofworksupporting members or ribs 54 carried by and projecting upward fromthe contact face of the deflector 33, in the channel 36. As shown, thereare two of these supporting members or ribs 54, having a parallelarrangement and extending fore-and-aft of the machine through thechannel 36 and terminating at 55 near the top of the paper table 38. Thethickness of each rib 54 is preferably such that, within its field ofoperation in the channel 36, it occupies preferably about one-third ofthe space between the two deflectors 32 and 33. The ribs may be locatedat appropriate points longitudinally of the platen, and be properlyspaced apart, in order to leave an intervening space lll between them.Throu h this intervening space a work sheet S %Fig. 10) may pass freefrom obstruction through the channel 36, while another work sheet L issupported on the upper contact faces of the ribs 54. I prefer to mountthe ribs so that they may be adjusted to different positionslongitudinally :of the platen, .in order that various widths of sheet Smaybe introduced between said ribs in the channel 36. Any suitable meansmay be employed for this purpose. ln the present instance, I providethree parallel series of openings 56 in the deflector 33 and paper table38 for each of the ribs. The different series of openings for each ribare spaced apart longitudinally of the platen about three-quarters of aninch, A series of screws 57 pass through a series of openings 56 and arereceived at their threaded ends in tapped openings in a companion rib,to detachably secure each rib in any one of the three positions to whichit may be adjusted along, the channel 36. It has been found in practicethat the means described efl'ectively overcome the difliculties pointedout above in successively introducmg two work sheets in the channel 36.

' n order to facilitate the backward introduction of the work sheetsinto the mouth of the channel 36 from in front of the platen,

there is provided a guide, shield, or paper deflector 58 that is movableon the carriage from a substantially horizontally disposed ineflectiveposition, shown in full lines in Fig. 1, to a downwardly and rearwardlyinclined effective position, shown in Fig. 2, and vice versa, asdisclosed in certain of said hereinbefore mentioned patents. In order toreceive these movements the deflector is constructed and mounted, in thepresent instance, in the specific manner disclosed in said Walsoe Patent1,663,362.

Thus, the sheet metal deflector 58, which extends substantiallythroughout the length of the platen, is bent under along one-edgeportion to form a looped or doubled portion 59, which extends throughoutits length on the side thereof opposite its contact face forming anenclosed channel within the looped portion. In the open ends of thechannel formed by the looped portion of the deflector are receivedoppositely directed ears or bent ends 60, which project inwardly fromparallel sheet metal supporting arms 61 and 62 and are riveted to thedeflector 58. These supporting arms 61 and 62 are pivotally mountedrespectively on forward cured to the end plates 8 and 9 respectively hasa sliding, as well as a pivotal movement y projecting arms 8 and 9' se-'on said pin. A coiled expansion s ring 64 surrounds said pin and tends torce the arm 62 and the parts connected therewith to the left, forpurposes which will presently appear. The arm 61 is supported on theshouldered bearing portion of a headed pivot screw 65, as shown in Fig.6,, for pivotal movement and. also for axial movement alon said pivotscrew. The threaded end 0 this screw is received in a tapped opening inthe end of a shouldered pin 66 secured to and ,projecting inward fromthe end plate 8 of the platen frame.

Loosely supported on this same pin 66, in

termediate a shoulder thereon and the end of the shouldered portion ofthe screw 65, is a hub 67 to which is riveted an actuating arm 68. Thehub .67 and connected actuating arm 68 are therefore free to turn on thesupporting pin 66 but are held a ainst axial movement thereon. Aninwardly projecting pin'69 is secured to the arm 68 and has a reducedportion 70 at the end thereof. This reduced end tits in an opening inthe supporting arm 61 of the deflector 58. This connection between thearms 61 and 68 causes them to turn together and is normally maintainedby the force exerted by the spring 64. The construction is such,however, that the deflector 58 may be shifted to the right on itspivotal supports 63 and 65 against the force of the spring 64. At thistime the connection between the arms 61 and 68 will be broken and thedeflector 58 is free to drop forward and downward until arrested by thetop plate 1, as shown in dotted lines in Fig. 1. The main purose of thusdisconnecting the deflector 58 rom its actuating arm 61 and the means bywhich the latter is controlled, and moving the deflector to the dottedline Fig. 1 posi tion, is to giveaccess to the ribbon vibrator 17 'for.threading the ribbon l7 therethrough.

' The arm 68 constitutes one arm of a bell crank lever, the other arm ofwhich is indicated b the reference numeral 71. The arm 71 carries anoutwardly projecting connecting pin 72 that is received and works in aslotted cam 73 in an actuating arm 74. Said arm 74 is provided with ahub 75 (see Fig. 6) by which it is secured to the hereinafter mentionedrock shaft 29. The character of the slotted cam and the construction andthe arran ement of the parts are such that a forward ivotal movement ofthe. arm 74 from the Fig. 1 to the Fig. 2 osition, causes a pivotalmovement of the deflector58 in the opposite direction, or rearwardl fromits normally ineffective position. his brings the deflector 58 to theefl'ective position, shown in Fig. 2, where it overlaps and virtuallyforms a continuation of the deflector 33. In this movement of thedeflector 58 it passes from a position where it is out of fill the pathof the type bars to a position where it is in the paththereof, andcrosses the printing line where .it is effective in directing work'sheets introduced rearward from in front of the platen downward into theopen channel 36. From thence the sheets in question pass around andbeneath the platen to the rear thereof.

The actuating arm 74 is provided with a finger piece 76 at the upper endthereof, whereby said arm and the parts controlled thereby may beactuated at will. The arm 74; also stands in cooperative relationshipwith means for controlling the shifting movement of certain of the feedrollers, to

be automatically controlled thereby, as will hereinafter clearly appear.7

The actuating arm 74; constitutes one of two supporting arms for a wireline-indicator 77. Said indicator extends longitu dinally throughout thelength of the platen and is adjustably connected to the arm 74 by novelmeans of the present invention which will now be described.

The arm 74 is formed with a lug 78 that extends in a plane at rightangles tothe plane of said arm, as indicated in Fig. 7. This lugconstitutes one jaw of a clamp a plate 79 constituting the other jaw ofsaid clamp. A pair of headed screws 80 have their stems extending freelythrough openings in the clamping jaws 78 and 7 9 and engage tappedopenings in a plate 81 in the rear of the plate 79. One end of the wireline indicator 7'? passes between the clamping jaws '38 and 79intermediate the screws 80, and may be adjusted up and down between thecontact faces of said jaws. 18y tightening the screws 80, the clampingjaw 79 will be drawn towards the jaw 78 and firmly clamped and hold thewire 77 in its adjusted position on the arm '74. One distinct advantageof this form of adjusting means is that it enables the assembler tograsp, with a pair of pliers, the projecting end of the wire 77, shownin Fig. 7, and draw the wire taut throughout its length. By then bendinthe wire over a corner of the jaw 78, as s own, the wire will beprevented from relaxing from its taut condition while it is beingadjusted up or down at this end of the arm 74, and while the screws 80are being tightened to firmly hold the wire in its adjusted position.

ll also prefer to provide a stop 79" ofi-set from the plate 79 and whichcoacts with a stop pin 82 (Fig. 1) that projects inward from the'endplate 8 of the platen frame, and thus limits the rearward movementof the arm'74 and the parts controlled thereby. This method of limitingthe movement of the parts is superior tothe provision of a stop to coactwith the platen for this purpose, since in the present construction thestops do not interfere with a register sheet,

eanne for example, reaching to or extending beyond the ends of theplaten.

The opposite end of the line indicating wire may be secured to avertically adjustable slotted plate 83 (see Fig. 3) held by screws 84 ona second supporting arm 85, as disclosed in said Walsoe patent. The arm85 is secured to the rock shaft 29 near the right-hand end thereof. Acoiled contractile spring 86 is connected at one end to the arm 74: andat its opposite end to a pin 87 extending inward from the end plate 8.This spring tends to return the arm 7% and the parts connected therewithto the normal, Fig. 1, position Where the arm is arrested by thecooperation of the stops 79* and 82.

The novel features above described for adjustably mounting thelineindicating wire 77 and for arresting its movement towards the platenetc., are not claimed herein but are claimed in a division of thisapplication filed Dec. 13th,'l927,'Sr. No. 239,706 (now Patent No-1,752,484)

The paper feeding mechanism embodied in the present constructionincludes a plue rality of aligned paper feed rollers 88, arranged tocoact with the top of the platen and with work sheets introduced fromthe rear of the platen through the channel 87. Said feed rollers 88coact with said sheets after the latter have passed above and beyond theprinting line. The paper feed rollers 88, as shown in the presentinstance, are

constructed and mounted in the same gen- 7 eral manner as in saidhereinbefore mentioned Hart Patent 1,650,851, except for changes inmounting the spindle on which said feed rollers'turn, as will-presentlyappear. v for longitudinal adjustment along a supporting rod or spindle89,supported atits ends by forwardly extending arms 90 that are pivotedon the supporting rod 48, hereinbefore referred to, which is secured atits ends to the platen frame. Springs 91 exert their force against thearms 90 and thus cause the feed. rollers 88 to bear against the platen,or certain only of the work sheets thereon.

By swinging the bail 89 upward and rearward the said feed rollers arereleased.

I provide each of the arms 90 with an inwardly projecting bearing member92, shown in detail in Figs. 13 and i l, in which the ends of thespindle 89 are loosely seated, as shown, the diameter of the bore ofeach bearing being greater than the diameter of the spindle. This is inorder that there may be an equalization of pressure exerted from theindividually acting springs.9l on opposite ends of the roller supportingspindle 89. Although it is desirable to thus loosely support the spindle89 at opposite ends so that said spindle may assume varying angularrelations relatively to the axis of the Thus, the feed rollers aremounted L IRS) platen as well as a parallel relation thereto, it also isdesirable to prevent or limit the turnin movement of the spindle in itsbearings. his is preferred because, among other reasons, Imount sideedge paper gages on the spindle 89, as will presently appear, and anymaterial turning of the spindle which would displace said gages fromef-. fective position should be prevented. Therefore, ll provide eachend portion of the spindle with a cross pin 93 projecting from oppositesides of the spindle into slots 94 extending longitudinally of thecompanion bearing'member 92 and through the walls thereof. The diameterof each pin is preferably slightly less than the width of the slot 941in which it is received. This construction aifords a slight relativepivotal movement between the arms 90 so that there may be anequalization of pressure of the springs 91 on the feed rollers 88 at theop-' posite ends ef the spindle 99. The extent of this slight relativemovement between the arms 90 is determined by the extent of lost motionof the'pins 93 in their respective slots 94. When shifting the feedrollers 88 away from the platen the arms 90 will shift in unison whenthe slight extent of lost motion of the pins 93 in their slots 94 istaken up. Each bearing member 92 may be secured to its companion arm 90by any suitable "means. In the present instance each bearing member hasa threaded extension or stud 95 which passes through an opening in thecompanion arm 90 and engages a nut 96 on the opposite side thereof.

The above described means for mounting the spindle 89 are not claimedherein but are claimed in my divisional application Sr. No. 236,984hcreinbefore referred to.

In the present construction I have provided means for automaticallylocking the feed rollers 88 in ineffective positionwhen they are thrownoff. Referring moreparticularly to Fig. 1, it will be. seen that theleft-hand arm 90 carries an outwardly pro jecting headed pin 97. Thestem of this pin passes through a curvedslot 98 in a locking member orlatch 99, pivoted on a headed pivot screw 100' threaded into a tappedopening in the end plate 8. The curvature of the slot 98, when the latchis in the full-line position, is substantially concentric with the axisof the rod 46 on which the arms 90 turn. Extending at an angle to'theslot 98 at the upper end thereof is a locking notch 101 that provides alocking shoulder 102. A leaf spring 103 is secured at one end by. ascrew 104 to the end, plate 8, whereas the free end of said springextends beneath a shoulder 105 on the latch 99. The force of thisspring" is exerted to' shift the latch from the full to the dotted lineposition when the left-hand arm 90 is shifted to the dotted lineposition to release vthe feed rollers 88. The effect of this move- Theautomatically operating latching means described above leaves both handsofthe operator free to adjust the register sheet and its accompanyingcarbon sheet when the feed rollers 88 are released.

In the present construction I have provided twoindependent side edgegages 107 and 108 which are mounted on the supporting od or spindle 89,as shown in Figs. 1, 4 and 6. Each gage is fixed on an independent hubor carrier 109, tapped to receive a set screw 110 by which it is held inany position to which it may be adjusted along the spindle 89 on whichit is mounted. The gage 107 projects rearward from the supportingspindle for cooperation with the left-hand side edge of a work sheetintroduced into the channel 37 from the'rear of the platen, whereas thegage'108 extends forward from the spindle Where it coacts with thelefthand side edge of a work sheet introduced from in front of theplaten in the channel 36. The spindle 89 being fixed against appreciableturning movement in the arms 90, will hold the gages from unduly turningaround the axis of said spindle, when the gages are held in place by theset screws 110. Nevertheless, the gages swing'with the spindle when thelatter is turned with the arms 90 around the axis of the supporting rod46 to releasing position, It will be understood that by making the gages107 and 108 relatively adjustable they may be adjusted one withreference to the other, as well as affording an adjustment of both ofthem to various points along the spindle whilea given space between themis maintained. Moreover, it will be seen that each gage is-reversible onthe supporting spindle, sothat the gages may be arranged with their hubsextending toward each other, as shown, or one extending outward to theleft, or both extending inward to the right, or where the gages are tobe brought in close relationship the hubs may extend away from eachother, giving the closest possible arrangement of the plate-like gages107,

my said divisional application Sr. No. 236,984.

Aside from the side edge paper gages described above, it should beunderstood that suitable paper end stops, such, for example, as certainof the end stops described in said hereinbefore mentioned patent toBurns #4: 1,647,854, may be employed. However, since a specificdescription of such end stops is unnecessary to arrive at anunderstanding of the present invention, further detail retcrence theretowill be omitted.

1n the present machine 1 have included certain features of the paperfeed roller controlling means disclosed in said Vfalsoe application, aswell as the means by which the paper deflector 58, line indicator 77 andribhon vibrator 17 are automatically controlled thereby. Tn someinstances l have modified such mechanism, and in other instances 1 havecombined therewith new features for converting the machine into aso-called three-sheet biller, as will now be described.

A plurality of aligned paper feed rollers 111, preferably two in numberand in the nature of margin feed rollers, are mounted for adjustmentalong a supporting rod, carrier, bar or spindle 112. Any suitable meansmay be employed to retain said rollers in their adjusted position alongthe spindle 112, such for example, as the means di closed in the saidWaisoe Hill patent. The spindle 112 is reduced at its ends where it isprovided with circumferential grooves 113 (Fig. 5), in each of which isreceived parallel guide members 111 of a supporting arm or guide. Theleft-hand supporting arm 115 at its front end is secured by a screw 116to the carriage. The rear end portion of said arm is adjustablyconnected to the upper end of a supporting linlr 117, the lower end ofwhich is supported on the inwardly projecting pin 66 on the platenframe. rom an inspection of Fig. 2 it will be seen that one side of thispin is cut away at 66 to provide'a clearance for that part of the arm74.- in which the cam slot 73 is formed. The means of my presentinvention by which an. up and down adjustment of the arm 115 on the link117 is effected, is best shown in Fig. 11, althou h any suitable meansmay be employed tor effecting this adjustment. Fromthis figure it willbe understood that an eccentric 118 is loosely seated in an openin, 119in the link 117. This eccentric has a exagonal head 120 by which it maybe turned. An eccentrically arranged opening 121 through the eccentricreceives the,stem of a headed binding screw 122. The threaded end ofthis screw engages m a tapped opening 122 in the supporting arm 115.When the screws 122 and 116 are loosened, the eccentric 118 may beturned, thus effecting a slight up or down ad ustment of the rear end ofthe supporting and guide arm 115 around tde point of its connection 116with the carriage. By tightening the screws 116 and 122 the arm may beheld fixed in its adjusted osition. The effect and purpose of this adustment of the arm 115 will be hereinafter made clear. A secondcorresponding supporting and guide arm 123 is provided for the oppositeend of the spindle 112. Said arm 123 is connected at its forward end bya screw with the carriage, and 'is adjustably connected at the rear endto a link 1241 in the manner previously described in connection with thearm 115. The lower end of this link 1241 is supported on theinwardlyprojecting pin 63, as shown in 6, and constitutes an abutmentfor the outer end of the spring 54'. to bear against. The arm 123supports and guides the spindle 112 in the same manner as the arm 115,for rectilinear bodily movement fore and aft of the m..- chine above theprinting line, to move the feed rollers 111 in a like manner from theefiective, Fig. 1, position, to the ineffective, Fig. 2, position, andvice versa.

In order to control the ahove described movements of the feed rollers111 there isprovided a rock shaft 125 mounted its ends'in bearingopenings in the arms 115 and 123. Two parallel crank arms 126 and 12?have their hubs 128 and 129, re spectively, secured to the rock shat 125to cause said arms to rock with the shaft from the Fig. 1 to the 2position, and vice versa. extending projection 130 that terminates in alinger piece 131 by which the roclt shaft 125 and the parts connectedtherewith may be controlled. Each of the arms 126 and 127 is in thenature of toggle arm or member, the arm 126 being pivoted 132 to theforward end of its companion toggle link or member 133. The rear end ofthe toggle link 133 is apertured to receive the spindle 112. A collar134 (Fig. is detachably secured on said spindle at one side of the link133, whereas the spindle carries a washer 135 on opposite side of saidlink, interposed be tween the link and the, arm 115. The other togglearm 127 is connected in a like manner with a tog 1e link 136, which inturn is connected with the spindle 112 in the same manner as the link133, and the same reference numerals are employed to designate thecorresponding parts of such connections. Laterally projecting pins 137and 138 (see Ti 8) are carried by the toggle members 12 and 136respectively, and to these pins are connected the opposite ends of acontractile spring 139. The construction and arrangement of the arts aresuch that when they are dispose as indicated in Fig. 1,.the spring 139exerts substantially a dead-center pull against the sub- The arm 126 hasan upwardly M stantially dead-centered toggle-members and is ineffectiveto withdraw the paper feed rollers 111 from contact with the platen or.a work sheet thereon. 'When, however, a forward pressure is exerted bythe operator on the finger piece 131 to break the toggles said spring139 exerts its force effectively and tends to complete the Withdrawal ofthe feed rollers 111 to ineffective position, indicated in Fig. 2. Onthe other hand, when the operator moves the finger piece back from theFig.2 position, to the position indicated in Fig. 1, this results instraightening the toggles at both ends of the spindle 112 and applyingthe feed rollers 111 with a positively exerted force against the platen,or a work sheet thereon. The toggle 126 and 133 is limited in thismovement by the stop lug 140 which projects from the arm 115 into thepath of the toggle arm 126. The toggle arm 127 also is limited in itsmovement by a corresponding stop lug projecting inward from thesupporting arm 123.

1 have referred to moving the toggle members to a substantially straightline position when applying the. feed rollers 111. In practice it ispreferable when thus moving said feed rollers to arrest the togglemembers after they have passed slightly over the straight line ordead-centered position, so as to hold the feed rollers 111 applied andprevent the reaction of the/parts from accidentally releasing said feedrollers. They will thus be retained applied indefinitely, or until suchtime as the operator manually effects a preliminary breaking of thetoggle from the Fig. 1 position, and enables the spring 139 to exert aforce which tends to complete the movement of the feed rollers toineffective position;

In accordance with my present invention 1 provide an additional, orsecondary set of paper feed rollers, preferably two in number, andauxiliary means for control ling said feed rollers, so that they may beemployed in conjunction with what may be termed the primary feed rollersdisclosed in said Walsoe application to act as a so-called three-sheetbiller. This mechanism. will now be described. I

As shown in the present instance, a set of two aligned auxiliary orsecondary feed rollers 141 are mounted on a spindle 142 carried by asheet metal yoke or supplemental carrier 143. The vertically disposedend arms 144 and 145 of this yoke are apertured at 148 (see Fig. 8) toprovide bearing openings in which the spindle or main carrier thereon.

112 is received and'on which spindle the yoke is carried for bodilymovement therewith and for independent pivotal movement Thisconstruction is such that when the primary feed rollers 111 are in theeffective (Fig. 1) position, a shifting of the yoke 143 from the dottedto the fullline positionin said figure will carry the secondary feedrollers 141 into contact with the platen, or with, say, a statementsheet on the platen introduced rearwardly into the channel 36 from thefront of the platen. lVhile, as indicated above, the feed rollers 141move bodily towards and away from the platen with the supporting rod orspindle 112, they are out of axial alignment with the rollers 111 and itis the pivotal movement of the feed rollers 141 around said supportingspindle or main carrier which determines whether the feed rollers 141are effective or ineffective, even though the spindle 112 be in theadvanced Fig. 1 position. The means by which the pivotal position of thefeed rollers 141 around the spindle 112 is determined are as follows:

Referring more particularly to Fig. 8, it will be seen that an off-setear 147 is provided onthe upright arm 144 of the yoke or carrier 143. Aheaded pivot pin 148 connects said ear to a link-like controlling orlocking member 149. An upwardly extending arm 150 on the member 149terminates in a finger piece 151, by which said member and the partscontrolled thereby may be manipulated in a manner which will presentlyappear. The forward end of the member 149 has a slot therein having aportion 152 thereof at one elevation and a portion 153 at a higherelevation. The formation of the slot is such that a locking shoulder 154is provided intermediate the two portions 152 and 153 of the slot. Aheaded pin 155 extends through said slot and is carried, in the presentinstance, on a crank arm 156 fixed on the rock shaft 125. A.

laterally projecting pin 157 on the member the relation shown in Fig. 8.The manner in which the feed rollers 141' and the controlling meanstherefor function, will now be described.

Assume that a register sheet E (Fig. 10) and its accompanying carbonsheet (not shown) have been introduced through the channel 37 andproperly positioned with the leading edges thereof beneath their feedrollers 88, and that the remaining parts are in the Fig. 2 position. Theoperator then introduces a ledger sheet L from the front of the plateninto the channel 36 and .accurately positions said sheet. An actuationof the finger piece 131 in a direction opposite to that indicated by thefinger thereon Fig. 2.

in Fig. 2, results in straightening the toggles to the 1 position andpositively applying the feed rollers 111 against the platen and againstthe margins of the previously introduced ledger sheet. At this time thefinger piece 1.51 and the parts controlled thereby are in thedotted-line, Fig. 1, position, with the feed rollers 1411 in thereleased position. This is due to the fact at this time thelockinshoulder 154- engages the pin 155 and holds the yoke 1413 against theforce of the spring 158, as indicated in dotted lines in Fig. 1. Thestatement sheet S with an accompanying carbon sheet (the latter notbeing shown) may then be introduced from the front of the platen intothe channel 36, and between the feed rollers 1 51 and the platen, or theledger sheet thereon. After the statement sheet and the accompanyingcarbon sheet have been properly adjusted, the finger piece 151 isshifted by the operator from the dotted to the full-line Fig. 1position. This results in first moving the torward end of the link ormember 149 up disengaging the locking shoulder 15 1 from the pin 155.The spring 158 is then effective to swing the yoke 1 13 and feed rollers1 11 from the dotted to the full-line Fig. 1 position, thereby applyingsaid feed rollers to the previously adjusted statement sheet 5. Themachine is then conditioned to proceed with the writing, and the matterwritten will be produced -on the statement sheet and through the carbonsheets on the ledger and register sheets.

After the statement is written as de-- scribed, the operator shifts thefinger piece 131 to the Fig. 2 position, thereby releasing the feedrollers 111 and 1 11 and permitting ready withdrawal of the statementsheet, the accompanying carbon sheet and the ledger sheet, andconditioning the machine for new sheets to replace those withdrawn. litwill be seen that the act of shifting the parts as last described, withthe aid of the finger piece 131, resulted in automatically dropping thefront end of the link from the position where the locking shoulder 15 1is released from the pin 155 (see full lines in Fig. 1), to the positionwhere said shoulder is positioned to engage said pin, as shown in Theefi'ect of this was to automatically condition or look the feed rollers141 so that they will not be applied to the platen or a work sheetthereon when the next, or any subsequent, actuation of the finger piece131 is effected to apply the feed rollers 111 to the ledger sheet. Infact the feed rollers 1&1 are thus automatically conditioned or lockedout of effective position indefinitely, or until they are again appliedby an independent actuation of the finger piece 151 in the mannerhereinbefore described. This occurs after a new ledger sheet has beeninresales serted, positioned, and clamped in position by its feedrollers 111, and arter a new statement sheet and accompanying carbonsheet have been introduced and positioned in place. After each writingof a statement and'ledger sheet as-described, the automaticallyoperating locking means for the feed rollers 1 11 will function duringthe act of shifting the finger piece 131 from the F i g. 1 to the Fig. 2position, and can only be released by an independent actuation of thefinger piece 151.

l have shown and described the locking link or member 1&9 as supportedon a pin 155 carried by a crank arm 156 on the rock shaft 125, simplybecause the provision of the crank arm constitutes a convenient place tosupport the in 155. The locking link is moved fore-ano-aft of themachine by reason of its connection with the spindle 112, so that thereis no necessity for the provision of a movable pin 15.), and it maytherefore be mounted on any convenient part of the carriage, and thedevices will function in the manner described.

By providing the feed rollers 1451 and the controlling means therefor, 1convert the so-called two-sheet biller described in the hereinbeforementioned Walsoe application into a so-called three-sheet biller.

It will be understood, moreover, that the .spindle 112 and the rockshaft 125 are detachable from the machine with little dilhculty, andthat the feed rollers 141 and the means for controlling them may bereadil attached to or detached from the rock shait 125 and the spindle112. Therefore, these devices are in the nature of an attachment whichmay be applied or omitted at will, de-

pending on the use to which the machine is to be put, as a two-sheet orthree-sheet biller. It will be understood, moreover, that in applyingthe attachment to the machine disclosed in the VValsoe patent, it isunnecessary to modify the structural features existing in said machine.

llt has been hereinbeii'ore pointed out that by the adjusting meansdisclosed in Fig. 11 for the guide arms 115 and 123, the positivelyapplied feed rollers 111 will be pressed with more or less force eachtime they are applied, depending on said adjustment. It is believed thatthis will be readily understood since said feed rollers are appliedabove the printing line, and the adjustment of the guide arms istransverse to the line of rectilinear movement of said feed rollers 111intoefiective position and slightly changes such path of movementrelatively to the inclined contact face of the platen. Therefore, thedownward adjustment of the guide arms will bring the feed rollers 111nearer to the platen, so that they will be applied with greater forcewhen the actuating toggles are straightened. On the other hand, anupward adjustment of the guide arms carries the feed rollers 111 furtherfrom theplaten, so thatthey will be positively applied with less forcewhen the toggles are straightened. 1

Thus far 1 havedescribed the means for moving the feed rollers 111 intoand out of contact with the platen without reference to the automaticcontrol by such means of the line-indicator 77, the paper deflector 58and the ribbon vibrator 17. The arrangement by which such automaticcontrol is effected is to extend the actuating arm 7 4 into the path ofthe bodily movable spindle 112. Thus, it will'be seen that saidactuating arm etxendsup between the supporting arm 115 and the togglelink 133. As the parts move from the Fig. l, to the Fig. 2 position, thewasher 135 on the left-hand end of the spindle 112 willcoact (after apreliminary extent of lost motion) with the actuating arm 74:.

till

This will result in automatically shifting the line indicator 77 toineffective position, in shifting the deflector 53 to effective positionand in lowering the ribbon vibrator 17 out of the path of the saiddeflector, all as represented in Fig. 2. Such movements of the parts inquestion will have been. effected by the time the stop projection 159 onthe lever 74 reaches the coacting stop 140, as shown in Fig. 2, andarrests further movement of the parts.

It will be seen that while the parts referred to above are automaticallyactuated during the withdrawal of the feed rollers 111 from efiectiveposition, nevertheless by an r actuation of the finger piece 76, theline indicator 77, deflector 58 and the ribbon vibrator 17 may be movedindependently of the feed rollers 111 from the ldig. 1 to the Fig.

2 positions, and while said feed rollers remain applied to thepla ten.

Atdiflerent times, depending on conditions of use of the machine, it isrequired that the deflector 58, line indicator 77, and ribbon vibrator17 be automatically moved to their respective positions when the feedrollers 111 and 141 are moved bodily back and forth between the Fig. 1and the Fig. 2 positions, and that said deflector, line indicator andribbon vibrator be independently controlled by the finger piece 76, asexplained above. But it is also essential at times that said feedrollers be released without moving the line indicator from its effectiveposition, as indicated in Fig. 3. This is necessary when for example theline indicator is to be wholly relied upon toelfect proper adjustmentsin a line feed direction, of the sheets (such as the ledger sheet L andstatement sheet S) introduced rearwardly in the channel 36. To attainthese ends the provision of lost motion between the leftrollers 141, mayeach be separately adjusted.

with reference to the line indicator 77.

in order that the feed rollers 111 and 141 may be automatically held in,and not be accidentally moved forward beyond the Fig. 3 position by thespring 139, which tends to move said rollers to the fully released, Fig.2 position, I provide a detent means which will now be described:

In the present instance I have provided a simple form of detenting meanscomprising a comparatively heavy leaf-spring 160 which is bifurcated atits forward end, as-

indicated at 161, to straddle the rock shaft 125. This spring is slottedat 162 to receive the stem of a headed clampingscrew 163, received atits threaded end in the supporting arm 115. In this manner the springmay be mounted on said arm 115 for foreand-aft adjustment. A tighteningof the screw will bind the spring in its adjusted position at theanchored end thereof. The rear free end portion of the spring is bent,as clearly shown in Fig. 5, to provide an inclined detent face 164 withwhich the lefthand end of the spindle 112 coacts, as shown in dottedlines in the above mentioned figure, when the parts attain the Fig. 3position. It will be understood that the power of the spring 160 is suchas to overcome the tendency of the spring 139 to move the feed rollersto the Fig. 2 position. Therefore, the operator may break the togglesfrom the straight-line Fig. 1 position, and the parts may be arrested inthe intermediate Fig. 3 position, unless it is desired to move them tothe Fig. 2 position, where the feed rollers are arrested at the limit oftheir releasing movement, after the deflector 58, line indicator 77 andvibrator 17 have been shifted. Tn this event it is merely necessary forthe operator to exert a slight pressure on the finger piece 131 afterthe detent face 164s is reached, which will result in deflecting the ofthis face is such that" it will coact with the left-hand end of thespindle 112, on the opposite side thereof from that with which the partsare in the position shown in Fig.

2.. The purpose of this detent face 165 is to i the detent face 161coacts, when said spindle has completed its releasing movement, and

- say, of the side edge gage 107.

assure the maintenance of the parts in the Fig. 2 position, or preventthem under the reaction of the spring 86, or otherwise, from beingaccidentally displaced from said Fig. 2 position. This detent face 165therefore prevents an accidental movement of the deflector 58, lineindicator 77 and the ribbon vibrator 17 from the positions which theyoccupy in Fig. 2 to, say, the Fig. 1 position. Should the deflector 58thus accidentally move from the Fig. 2 to the Fig. 1 position, it wouldinterpose itself in the path of the type bars and prevent the operatorfrom operating the machine to produce writing. Moreover, the lineindicator would be moved to ineffective position and the ribbon Vibratorwould be lowered. It will, of course, be understood that resistanceoffered by the detent face 165 may be readily overcome by actuating thefinger piece 131 to move it and the parts controlled thereby from theFig. 2 to the Fig. 1 position.

The means that enable the spring 160 to be adjusted as described, allowsthe detent faces 16% and 165 to be properly set to coact with thespindle 112 in the different positions specified.

One example of the use of the present machine, such as has. beenhereinbefore referred to, is asfollows:

A register sheet, which is to take the accumulation of the various bewritten, and a corresponding carbon sheet (having its effective facenext to the register sheet) are first introduced together from the rearof the platen through the channel 37, being positioned widthwise withthe aid, At this time the parts may be disposed as indicated in Fig. 2.The leading ends of the register and its carbon sheet are thenintroduced beneath the paper feed rollers 88 and the sheets are adjustedto proper position in a line feed direction, if necessary, with the aidof the line indicator 77. This may be readily accomplished by moving thefinger piece 131 rearward until the line indicator is in indicatingposition, which is attained before the feed rollers 111 are moved all ofthe way to inefiective position, and when the parts have attained theFig. 8 position. After initially positioning the register sheet in themanner indicated, no further attention need be paid to it in thesuccessive introduction, writing and withdrawal of the differentstatement and ledger sheets. The

register and associate carbon sheet having been initially positioned asindicated, a ledger sheet carrying the account of the statement to bewritten is introduced from in front of the platen through the channel36, the parts being first positioned, as indicated in Fig. 2, tofacilitate the introduction of the ledger sheet. The led er sheet thusintroduced may be proper y positioned statements to memes widthwise ofthe machine and the register sheet, with the aid of the side edge gage108. With the parts shifted to the Fig. 3 position, the line indicatormay be employed to locate the ledger sheet in a line space direction.The finger piece 131 is then actuated to straighten the toggles, asshown in Fig. 1, and apply the feed rollers 111 to the adjusted ledgersheet, leaving the feedrollers 141 released, as shown in dotted lines.The finger piece 76 may then be actuated to condition the machine toreceive the statement sheet. Pressure is maintained on the key 76 untila statement sheet is introduced rearwardly into the channel 36. Whenthus positioned the finger piece 7 6 is released and the statement sheetadjusted with reference to the now efiective line indi eator 77. Thefinger piece 151 is now actuate-d to release the feed rollers 141 fromcontrol of the locking means therefor and enable them to bear on thestatement sheet and hold it in its adjusted position. The operator maynow proceed to write the statement and simultaneously produce a manifoldcopy thereof in requisite positions on the ledger and register sheets.The finger piece 131 is then shifted to the Fig. 2 position and newledger and statement sheets are introduced, as before. In shifting theparts to the Fig. 2 position the locking link 1 19 is automaticallylocked on the pin 155, so that when the feed rollers 111 are nextpressed against a newly introduced ledgersheet the rollers 1 11 will beheld in ineffective position and cannot be moved from such positionuntil the finger piece 151 is actuated to release the locking link 1 19from its cooperating pin 155. This does not occur until a new statementsheet has been introduced and adjusted, as previously pointed out.

When using the machine for writing comparatively short bill sheets,where entries are always begun at a given point on each sheet, endstops, such for example as disclosed in the hereinbefore mentioned Burnspatent, may be employed instead of at all times relying on the lineindicator to position the ledger sheet and the bill, statement orinvoice sheet. In such event the operation Will be much the same asdescribed above, except that it is unnecessary to manipulate themechanism as described to bring, by a separate operation, the lineindicator into use with the ledger and bill sheets. It will beunderstood that after writing each statement the carriage isautomatically returned and the platen automatically line spaced, therebyspacing the platen to bring the register sheet in proper position toreceive a manifold copy of the next statement written on the machine.

In substantially the same manner as that indicated above, the machinemay be emtime the sheet described above as a register 7 sheet wouldconstitute a manifold record of the checks written and may constitute apay roll sheet. In this event, however, no ledger sheet will beemployed. The feed rollers l ll will be employed to coact with thechecks, and the finger piece 151 would not be manipulated, leaving thefeed rollers 141 ineffective.

Generally speaking, the sheet described above as a register sheet, andwhich remains in themachine when the other sheets are removed and newones inserted, may constitute a register sheet, a proof sheet, a salessheet, a distributing sheet, or a pay roll sheet, depending on the useof the machine for diiferent purposes.

In some instances the line indicator may be employed to position, in aline feed direction, each sheet introduced from in front of the lateninto the channel 36 when it is'not f dasible or desirable, for onereason or another, to employ end stops. In such an event-the machine maybe manipulated as hereinbefore described.

By the present invention I have provided a construction which has provedrapid of operation, highly efficient and reliable in use, which iscompact and comparatively simple in construction and can be manufacturedat comparatively small cost and be readily embodied in existingRemington machines without modifying, or materially modifying, theexisting structural features of said machines.

Various changes may be made in the con- I struction and certain partsthereof may be employed without others, without departing from myinvention as it is defined in the accompanying claims.

What I claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine, the combination of a platen, a'set ofmargin paper feed rollers, controlling means for applying said feedrollers against the platen with a positive pressure, a second set ofmargin paper feed rollers spring-pressed against the platen, and meansrendered effective by said controlling means for restraining the springpressed rollers against the action of their spring means and away from.the platen while the first mentioned set of rollers are beingpositively applied.

- feed rollers, controlling means for applying said feed rollers againstthe platen with a positive pressure, a second set of margin paper feedrollers spring-pressed against the platen, means rendered effective-bysaid controlling means for restraining the springpressed rollers againstthe action of their spring means and away from the platen while thefirst mentioned set of rollers are being positively applied, and meansfor freeing said second set ofrollers from said restraining means. v

3. In a typewriting machine and billing mechanism therefor, thecombination of a platen, a set of margin paper feed rollers, means forcontrolling the movement of said feed rollers into and out of contactwith the platen, a second set of paper feed rollers restricted to afield of operation intermediate said margin feed rollers, independentmeans operable at will for moving said second set of feed rollers intocontact with the platen after the first mentioned set of feed'rollershas been applied, and means controlled by the movement of said first setof rollers away from the platen for automatically rendering andmaintaining indefinitely the second set of feed rollers'ineifective onthe laten so that when the feed rollers of the rst set are again appliedto the platen the rollers of tive.

4. In a typewriting machine and billing the second set remaininefi'ecmechanism therefor, the combination of a able hand controlledmeans for effecting an' application of the feed rollers of one set tothe platen independently of the feed rollers of the other set, andautomatically operating means for releasing the feed rollers of one setfrom the platen when the feed rollers of the other set are released.

5. In a typewriting machine and billing mechanism therefor, thecombination of a platen, a set of margin paper feed rollers,

means including a finger piece for. controlling the movement of saidfeed rollers into and out of cont-act with the platen, a second set ofpaper feed rollers restricted to afield of operation intermediate saidmargin feed rollers, means including a sec-' ond finger piece by whichthe feed rollers of the second set are independently controlled in theirmovement into contact with the platen after the rollers of the first setare in contact with the platen, and automatically operating means bywhich rollers of the second set are moved out of contact with the platenwhen the feed rollers of the .first set are withdrawn from the platen.

6. In a typewriting machine and'billing mechanism therefor, thecombination of a platen, two sets of paper feed rollers, the

rollers of one set being margin feed rollers and the rollers of theother set being restricted to a field of operation intermediate themargin feed rollers, a finger piece, means controlled thereby forcontrolling the movement of both sets of feed rollers towards and awayfrom the platen, a separate finger piece, means controlled thereby forinde pendently controlling the movement of the feed rollers of one setinto contact with the platen so that the rollers of one set may beindependently applied to the platen after the rollers of the other setare applied, and a-uton'iatically operating means for rendering one setof feed rollers ineffective when the rollers of the other are withdrawnfrom the platen.

7. i a typewriting machine, the combina." tion of a platen, a set :i'margin paper feed rollers, means for applying said .d rollers againstthe platen with a positive pressure, a second set of margin paper feedrollers spring-pressed against the platen, means for restraining thespring-pressed rollers against the action of their spring means and awayfrom the platen while the feed rollers of the first mentioned setarebeing positively applied, and means for automatically bringing saidsecond set of feed rollers under control of said restraining means whenthe feed rollers of the first mentioned set are moved away from theplaten.

8. In a typewriting machine, the combination of a platen, a set of paperfeed rollers coacting with the platen above the printing line andmovable into and out of contact with the platen, a second set of paperfeed rollers coacting with the platen above the printing line andconnected to move with the first mentioned set of rollers towards andaway from the platen and also movable into and out of contact with theplaten independently of the first mentioned set of feed rollers, andmeans for independently and positively locking said second set of feedrollers out of contact with the platen.

' 9. In a typewriting machine, the combination of a platen, a set ofpaper feed rollers coacting with the platen above the printing line andmovable into and out of contact with the platen, a second set of paperfeed rollers coacting with the platen above the printing line andconnected to move with the first mentioned set of rollers towards andaway from the platen and also movable into and out of contact with theplaten independently of the first mentioned set, of feed rollers, andautomatically operating means for independently locking said second setof feed rollers out of contact with the platen and including manuallycontrolled means for releasing said locking means.

10. In a typewriting machine, the combination of a platen, a set ofpaper feed rollers 'coacting with the platen above the printing line andmovable into and out of contact with the platen, a second set of paperfeed rollers coacting with'the platen above the printing line andmovable into and out of contact with the platen independently of thefirst mentioned set of feed rollers, and means for locking said secondset of feed rollers out 01"- contact with the platen, said locking meanscomprising a spring-pressed pivoted link having a loc notch therein to eg'age a pin shiftable with eed rollers and also havwhich said link maybe said second set o mg a linger PRC" shifted in. opp ngpr ie to :treethe loc 211d pin 11. ty'; o x conioination of a p 1 pr! my paper teedrol ierewitn, ond set 0 r ecd rollers co 12. in a typewriting machine,the com o bination of a platen, a set of primary paper feed rollerscooperative therewith, second set of secondary paper feed rollerscooperative with the platen, means for operatively connecting the twosets of feed rollers to move together towards and away from the platen,means for applying the set of pri-- mary feed rollers to the platen,independently actuated means for controlling the application of thesecondary feed rollers to 'l the platen, and automatically operatingmeans controlled by the release of the primary feed rollers forreleasing said secondary feed rollers and for thereafter maintainingthem ineflective of application to the platen except by an operation ofthe independently actuated controlling means therefor.

13. In a typewriting machine and billing mechanism therefor, thecombination of a platen, two sets of paper feed rollers cooperativetherewith, the rollers of one set being margin feed rollers and therollers of the other set being restricted to a field of operationintermediate the margin feed rollers, independently actuated means forcontrolling the application of the feed rollers of the two sets to theplaten, and automatically operating means for releasing one set of feedrollers from the platen when the feed rollers of the other set arereleased.

14. In a typewriting machine and billing mechanism therefor, thecombination of a platen, a set of primary margin paper feed rollerscooperative therewith, means including a finger piece for controllingthe application of said feed rollers to the platen, a second set ofsecondary paper feed rollers cooperative with the platen and restrictedto a field of operation intermediate said Hill margin feed rollers,means including an independently actuated finger piece for controllingthe application of said secondary feed rollers to the platen, andautomatically operating means for releasing said secondary feed rollersfrom the platen when said primary feed rollers are released.

15. In a typewriting machine, the combination of a platen, a set ofprimary feed rollers cooperative therewith, a shiftable spindle on whichsaid feed rollers are carried and by a bodily movement of which saidfeed rollers are applied to the platen, means for shifting said spindlebodily, a set of secondary paper feed rollers carried by said spindleout of axial alignment with said primary feed rollers, and independentlyactuated means cooperative with said secondary feed rollers to controlthe shifting thereof on said spindle and thus control the application ofthe secondary feed rollers to the platen.

16. In a typewriting machine, the combination of a platen, a set ofprimary feed rollers cooperative therewith, a shiftable spindle on whichsaid feed rollers are car-,

ried and by a bodily movement of which said feed rollers are applied tothe platen, means for shifting said spindle bodily, a set of secondarypaper feed rollers carried by said spindle out of axial alignment withsaid primary feed rollers, independently actuated means cooperative withsaid secondary feed rollers to control the shifting thereof on saidspindle and thus control the application of the secondary feed rollersto the platen, and automatically operatin means by which the release ofthe primary feed rollers is effective to release the secondary feedrollers but the application of the primary feed rollers to the platen isineffective to apply the secondary feed rollers to the platen.

17. In a typewriting machine, the combination of a platen, a set ofprimary feed rollers cooperative therewith, a shiftable spindle on whichsaid feed rollers are carried and by a bodily movement of which saidfeed rollers are applied to the platen,

means, for shifting said spindle bodily, a

carrier pivoted on said spindle, a set of secondary paper feed rollerscarried by said carrier out of axial alignment with the primary feedrollers, and independent means for controlling the pivotal movement ofsaid carrier on the spindle to control the application of the secondaryfeed rollers to the platen.

V 18. In a typewriting machine, the combination of a platen, a set ofprimary feed rollers cooperative therewith, a shiftable spindle on whichsaid feed rollers are carried and by a bodily movement of which saidfeed rollers are applied to the platen, means for shifting said spindle.bodily, a carrier pivoted on said spindle, a set of secondary paper feedrollers carried by said carrier out of axial alignment with the primaryfeed rollers, a finger piece for controlling the pivotal movement ofsaid carrier to control the application'of the secondary feed rollers tothe platen, and means autocarrier pivoted on said spindle, a set ofsecondary paper feed rollers carried by said carrier out of axialalignment with the primary feed rollers, a link connected to saidcarrier, automatically operating latching means cooperative with saidlink when the primary feed rollers are released, and a finger piece onsaid link for releasing it from its latching means and controlling theapplication of the secondary feed rollers to the platen.

20. In a typewriting machine andbilling mechanism therefor, thecombination of a platen, a spindle shiftable towards and away from theplaten, a set of paper feed rollers carried thereby and shiftable intoand out of contact with the platen by said shifting movement of thespindle, a second set of paper feed rollers carried by said spindle, andmeans operable independently of the operation of said spindle forrendering said second set of. feed rollers effective to coact with theplaten to feed a work sheet or sheets.

21. In a typewriting machine, the combination of a platen, a spindleshiftablc towards and away from the platen, a set of paper feed rollerscarried thereby and shiftable into and out of contact with the platen bysaid shifting movement Oflllle spindle, a second set of paper feedrollers carried by said spindle, means operable independently of saidspindle for rendering said second set of feed rollers effective to coactwith the platen and for locking them in ineffective relation, andautomatically operating means forrendering said locking means effectivewhen the spindle is moved away from the platen.

22. In a typewriting machine, the combination of a platen, two sets ofpaper feed rollers, a finger piece, means controlled thereby for movingboth sets of feed rollers ,towards and away from the platen and for

